It’s not necessarily self-loathing to accept that you have genes you don’t want to pass on, but still want to have a child.

"The point" for me would not be spreading my genes. It would be to spread my parenting and resources.

Possibly an easier idea for me because several of my many siblings already have multiple children that could be swapped in to my childhood photos without anyone noticing. My genes are pretty well established.

Well god what a fabulous thing that will actually be, if you can find the right ones to care for. I would not be telling neighbors or strangers though. Rather than seeing you as a kind or good person, others being stupid cunts will most of the time perceive you as a naïve "nice guy" or some sort of cuckold. But you have the capability of changing multiple kids lives for the better. Its a beatiful thing you are thinking of doing but also sometimes there's a line and you should be selfish like everyone else is. The likelihood is that those kids will grow up to just be like everyone else, selfish etc. So your decision should probably depend most on whether you find the right kids who will appreciate it.

No understanding it to me points out a monstrous narcissistic complex in you.

While I can understand not wanting to have a kid of your own blood very easy for many different reasons

What point does it defeat and why? I’m assuming that you’re talking about evolution here, where having your own kids rather than taking care of someone else’s have been adaptive, but that’s just like saying that the point of a large rock on a beach is to be so large as to not be swept into sea by the waves.

If you meant something else, please clarify!